Location-aware profiles in an aerial network

• US 9,900,080 B2
• Filed: 02/06/2017
• Issued: 02/20/2018
• Est. Priority Date: 02/03/2012
• Status: Active Grant

• Current Assignee: SOFTBANK Corporation (SoftBank Group Corp.)
• Original Assignee: X Development LLC (Alphabet Inc.)
• Inventors: Teller, Eric, DeVaul, Richard Wayne, Biffle, Clifford L., Weaver, Josh
• Primary Examiner(s): REGO, DOMINIC E
• Application Number:
  US15/425,452
• Publication Number:
  US 20170149492A1
• Time in Patent Office: 379 Days
• Field of Search: 455431, 455 131, 455 111, 455 98, 701 3, 709224
• CPC Class Codes: H04B 10/118 specially adapted for satellite communication
• CPC Class Codes: H04B 7/18502 Airborne stations
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 67/303 Terminal profiles
• CPC Class Codes: H04W 4/021 Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
• CPC Class Codes: H04W 4/026 using orientation information, e.g. compass
• CPC Class Codes: H04W 40/38 adapting due to varying relative distances between nodes
• CPC Class Codes: H04W 52/18 TPC being performed according to specific parameters

Abstract

Disclosed embodiments may help an aerial vehicle network to provide substantially continuous service in a given geographic area. An example method may be carried out at an aerial vehicle that is at a location associated with the first geographic area in an aerial network that includes a plurality of geographic areas. The balloon may determine that it should update its vehicle-state in accordance with a vehicle-state profile for the first geographic area. Then, in response, the balloon may determine the vehicle-state profile for the first geographic area, which may include one or more state parameters for balloons operating in the first geographic area. The balloon may then operate according to the vehicle-state profile for the first geographic area.

Claims

1. A computer-implemented method comprising:

while an aerial vehicle is at a location associated with a second geographic area, operating the aerial vehicle according to a second vehicle-state profile, wherein the second vehicle-state profile specifies one or more operational parameters for use by aerial vehicles from an aerial network while located in the second geographic area;

subsequently determining, by the aerial vehicle, that the aerial vehicle has moved to a location associated with a first geographic area; and

in response to determining that the aerial vehicle has moved to a location associated with the first geographic area;

determining a first vehicle-state profile for the first geographic area, wherein the first vehicle-state profile specifies one or more operational parameters for use by aerial vehicles from the aerial network while located in the first geographic area; and

causing the aerial vehicle to switch from operation according to the second vehicle-state profile to operate according to the first vehicle-state profile.

2. The method of claim 1, wherein determining that the aerial vehicle has moved to a location associated with the first geographic area comprises:

determining that the aerial vehicle has moved to a location within the first geographic area.

3. The method of claim 1, wherein determining that the aerial vehicle has moved to a location associated with the first geographic area comprises:

determining that the aerial vehicle has moved into a border area that is adjacent to the first geographic area.

4. The method of claim 3, wherein the border area is between the first geographic area and the second geographic area.

5. The method of claim 3, wherein the border area is an edge portion of the second geographic area that is adjacent to the first geographic area.

6. The method of claim 5, wherein sending the profile-update request comprises sending the profile-update request to one or more other aerial vehicles in the aerial network, and wherein at least a portion of the first vehicle-state profile is received from one or more of the other aerial vehicles.

7. The method of claim 5, wherein sending the profile-update request comprises:

sending the profile-update request to a ground-based station that is associated with the first geographic area, wherein at least a portion of the first vehicle-state profile is received from the ground-based station.

8. The method of claim 3, further comprising:

determining a direction in which the aerial vehicle is travelling; and

determining whether or not the direction in which the aerial vehicle is travelling is towards the first geographic area;

wherein the responsive determination of the first vehicle-state profile and switch from operation according to the second vehicle-state profile to operation according to the first vehicle-state profile, are conditioned upon a determination that the direction in which the aerial vehicle is travelling is towards the first geographic area.

9. The method of claim 1, wherein determining the first vehicle-state profile comprises:

sending a profile-update request; and

receiving, as a response to the profile-update request, at least a portion of the first vehicle-state profile.

10. The method of claim 1, wherein determining the first vehicle-state profile comprises:

searching a communication channel for a vehicle-state signal; and

receiving the vehicle-state signal via the communication channel, wherein the vehicle-state signal indicates at least a portion of the first vehicle-state profile.

11. The method of claim 1, wherein the one or more operational parameters indicated by the first vehicle-state profile comprise one or more of:

(a) at least one parameter indicating a communication protocol or protocols to be used in the first geographic area, (b) at least one parameter providing routing information for the first geographic area, (c) at least one parameter relating to transmission power for aerial vehicles operating in the first geographic area, (d) at least one parameter indicative of error correction coding that should be implemented by an aerial vehicle in the first geographic area, (e) at least one parameter indicative of a desired topology for the aerial network in the first geographic area, (f) at least one parameter that provides information related to ground-based stations or other fixed systems in the first geographic area, (g) at least one parameter indicative of power management that should be implemented by an aerial vehicle in the first geographic area, (h) at least one parameter affecting the horizontal and/or altitudinal movement of the aerial vehicle, and/or (i) at least one parameter providing information for complying with a legal requirement for the first geographic area.

12. The method of claim 1, further comprising:

subsequently, after causing the aerial vehicle to operate according to the first vehicle-state profile, determining that the aerial vehicle at a location associated with the second geographic area of the aerial network;

in response to the subsequent determination that the aerial vehicle is at a location associated with the second geographic area, causing the aerial vehicle to again operate according to the second vehicle-state profile.

13. A computer-implemented method comprising:

while an aerial vehicle is operating in an aerial network and is at a location associated with a second geographic area, transmitting a second vehicle-state signal that is accessible to one or more other aerial vehicles in the aerial network, wherein the second vehicle-state signal provides at least a portion of a second vehicle-state profile for the second geographic area, and wherein the second vehicle state profile comprises one or more operational parameters for use by aerial vehicles from an aerial network while located in the second geographic area; and

subsequently determining that the aerial vehicle is at a location associated with a first geographic area in the aerial network, and responsively;

transmitting a first vehicle-state signal that is accessible to one or more other aerial vehicles in the aerial network, wherein the first vehicle-state signal provides at least a portion of a first vehicle-state profile for the first geographic area, and wherein the first vehicle-state profile comprises one or more operational parameters for use by aerial vehicles from the aerial network while located in the first geographic area.

14. The method of claim 13:

wherein transmitting the first vehicle-state signal comprises broadcasting the first vehicle-state signal over a first communication channel, such that the first vehicle-state signal is available to any aerial vehicle in the aerial network that is monitoring the first communication channel; and

wherein transmitting the second vehicle-state signal comprises broadcasting the second vehicle-state signal over a second communication channel, such that the second vehicle-state signal is available to any aerial vehicle in the aerial network that is monitoring the second communication channel.

15. The method of claim 14, wherein the first communication channel is defined on a first RF air-interface, and wherein the second communication channel is defined on a second RF air-interface.

16. The method of claim 14, wherein the aerial vehicle is a first aerial vehicle, and wherein the first communication channel is defined on a free-space optical link between the first aerial vehicle and a second aerial vehicle.

17. The method of claim 13, wherein the aerial vehicle is a first aerial vehicle, the method further comprising:

while the first aerial vehicle is at a location associated with the first geographic area, determining, at the first aerial vehicle, that a second aerial vehicle should be updated with the vehicle-state profile for the first geographic area; and

responsively sending the first vehicle-state signal from the first aerial vehicle to the second aerial vehicle.

18. A non-transitory computer-readable medium having program instructions stored thereon that are executable by at least one processor, the program instructions comprising:

instructions for, while an aerial vehicle is operating in an aerial network and is at a location associated with a second geographic area, transmitting a second vehicle-state signal that is accessible to one or more other aerial vehicles in the aerial network, wherein the second vehicle-state signal provides at least a portion of a second vehicle-state profile for the second geographic area, and wherein the second vehicle state profile comprises one or more operational parameters for use by aerial vehicles from an aerial network while located in the second geographic area; and

instructions for subsequently determining that the aerial vehicle is at a location associated with a first geographic area in the aerial network, and responsively;

transmitting a first vehicle-state signal that is accessible to one or more other aerial vehicles in the aerial network, wherein the first vehicle-state signal provides at least a portion of a first vehicle-state profile for the first geographic area, and wherein the first vehicle-state profile comprises one or more operational parameters for use by aerial vehicles from the aerial network while located in the first geographic area.

19. The non-transitory computer-readable medium of claim 18, wherein the instructions for transmitting the first vehicle-state signal comprise instructions for broadcasting the first vehicle-state signal such that the vehicle-state signal is available to any aerial vehicle that is monitoring a first communication channel.

20. The non-transitory computer-readable medium of claim 18, wherein the aerial vehicle is a first aerial vehicle, the method further comprising:

instructions for determining, at the first aerial vehicle, that a second aerial vehicle should be updated with the first vehicle-state profile for the first geographic area, and responsively sending the first vehicle-state signal to the second aerial vehicle.